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That is true, just doing the dives as part of the Advanced Adventure would not qualify you to do a nitrox dive after the course. Although, as long as all of the Nitrox theory was covered, and the diver passed the exam and then showed they could analyse and mark up the gas, they would have met...

Thank you for the feedback and good luck with the courses.

It's not a rumor anymore, it has now been released. Digital PDF of Print Manuals - Coming to eLearning Courses - SDI | TDI | ERDI | PFI

Thanks for spotting that. As the others have said that only just changed in the standards. I have emailed the website team to remind them that the course description also needs to be updated.

Yes for Deco Procedures but for this range I would normally recommend Helitrox which covers the use of up to 35% Helium for dives to 45m. Using Helium greatly reduces the gas density and END for deep dives.

TDI doesn't dictate the gas you use. The syllabus covers the differences in using air and nitrox and how to calculating the best mix nitrox for any depth. It also covers the differences in using a best mix or standard mix approach. The Helitrox option also covers the advantages of using a weak...

Great news, welcome to TDI/SDI.

I don't know for sure if it's the same in the rest of the world but in the UK there is no charge for being a facility.

I am planning on heading over to Florida for Rebreather Forum 3 - RF3 Summary | Online Registration by Cvent from 18-20 May. I know Steve Lewis is one of the speakers but how many other TDI Instructors are planning on going? It would be great to put a few names to faces.

Of all of the SDI/TDI courses I teach, the Solo Diver course is the hardest to describe in response to this type of query. I've just finished teaching a Solo course today and it was very different to any other course but then each one is always very different. This is because I base each course...

Ooops, I can imagine that most people outside the UK and Ireland wouldn't understand just how contentious that could be. If you email headquarters I'm sure they can sort it out.

The two biggest are the London Dive Show (LIDS) 28th-29th March at the Excel Centre and the Birmingham Dive Show 24th-25th October at the NEC Birmingham. Of the two Birmingham is usually bigger and better attended. There are a number of other more regional shows such as DiverSE which is South...

If you only dive NDL then the differences between the various deco models will have very little impact. One may specify a slightly different no-stop time to another but that's about it. The real difference in deco theories comes in when you start to do deco stops. Very simply a Buhlmann or...

Hi Simon, Good to hear from you. How's Canada? Mark

There are still a couple of spaces avalable on this trip if anyone wants to do some of the best wrecks along the SW coast of the UK.

Half times are a common concept in science. The most famous use of half times is in relation to nuclear materials where the half time is the time it takes a radioactive substance to decay to half of its current size. This is exactly the same concept applied to the uptake of Nitrogen by a tissue...

I have some special offers especially for the LIDS weekend; Firstly I'm offering 10% off any TDI course booked during LIDS. All I need is a deposit during the weekend. Secondly I have some special offers on Analox products ordered in advance and delivered at LIDS. Analox O2EII Oxygen...

I'll be there on Saturday and Sunday. On or around the TDI stand for most of the time.

Hi Dr Deco, I was surpised that there was so little research on this. Thanks for digging up the paper by Cantais, Louge, et al, I'll have a look at it. Thanks for taking the time to look into it. Regards

Dive-Tech have arranged another wreck expedition. This expedition is to Salcombe in South Devon, it's a 3 day trip from Monday 13th June to Wednesday 15th June The expeditions are designed to explore some of the best wrecks in a particular area. This isn't just a normal dive trip...